Life jacket



FIG. 1 is a front, right and top side perspective view of a first embodiment of a life jacket, showing our new design;

FIG. 2 is a back, right and top side perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a front, right and top side perspective view of a second embodiment of a life jacket, showing our new design;

FIG. 8 is a back, right and top side perspective view thereof;

FIG. 9 is a front elevational view thereof;

FIG. 10 is a rear elevational view thereof;

FIG. 11 is a left side elevational view thereof; and,

FIG. 12 is a right side elevational view thereof.

The broken lines in the drawings illustrate the portions of the life jacket, which form no part of the claimed design. 

CLAIM The ornamental design for a life jacket, as shown and described. 